Question

Rhonda's micro current device uses _____, which is a rapid and interrupted current.

a) Direct current (DC)
b) Alternating current (AC)
c) Static electricity
d) Superconductive current

Answer 1

Rhonda's microcurrent device uses alternating current (AC), which is defined by its periodic reversal of direction, unlike direct current used in cars.

Step-by-step explanation:

Rhonda's micro current device uses alternating current (AC), which is characterized by a flow of electric charge that periodically reverses direction. Unlike direct current (DC), where the electric charge flows only in one direction and the voltage remains constant, alternating current's voltage varies periodically, often sinusoidally. This is why it's described as rapid and interrupted. In the case of cars, the type of current used is direct current (DC), because the voltage sources, like batteries, provide a constant voltage.